probably of foreign origin, see
3471
- jasper, a precious stone of various colours (for some are purple, others blue, others green, and others the colour of brass)
There is one kind called the Aeizusa, like to air and another Crystallizusa, clear as crystal. So Pliny speaks of a white Jasper called Astrios, and which, he says is "crystallo propinquans", near to crystal, found in India, and on the shores of Pallene. (Gill)